* {
    margin: 0px;
    padding: 0px;
}

ol,
ul {
    list-style: none;
}

img {
    width: 550px;
    height: 300px;
    display: block;
}

.banner {
    width: 550px;
    height: 300px;
    overflow: hidden;
    margin: 200px auto;
    position: relative;
    border: 2px solid rgb(126, 78, 148);
}

.banner ul {
    display: flex;
    width: 550px;
    position: absolute;
}

.banner ol {
    position: absolute;
    z-index: 2;
    bottom: 10px;
    right: 10px;
}

.banner ol li {
    float: left;
    margin-left: 5px;
    padding: 0px 5px;
    color: white;
    border: 1px solid rgb(230, 170, 127);
    background-color: rgb(131, 221, 221);
}

.banner ol li.active {
    background-color: rgb(236, 146, 176);
}